Introduction
Labor &
Overhead
Material
Calculation
Sample Cost

 

 

 

Variations-
Metal
Transfer
Equipment
Power
Supply
Shielding
Gases
Wire
Electrodes
Safety
Welding
Techniques
Welding
Conditions
Economics
Weld
Defects
Mig Spot
Welding
Tables

 

6 Sample Cost Calculation – 1/8 in. (3.2mm) fillet weld in low carbon mild steel-Mig short arc Required Information – Labor hourly rate – $7.50 & $7.50 overhead = $15 Arc travel speed (from Table 8.1, 0.045 in. wire) 27 inches per minute (68.58 cm/min) Operating duty cycle – 60% Pounds of weld metal required per foot – .03 lbs. (.044 kg/m) Deposition efficiency – 95% – wire price per pound – $.65 ($1.43/kg)* C-25 gas flow rate – 35 cfh (991 1/hr) C-25 cost per cubic foot – $.075 ($.0026/1) +     $15 Labor + overhead 27 x 60 x .60 = $ .185 per foot of weld     12 Continued on next page...